Integrating Smart Grid Devices into the Traditional Protection of Distribution Networks

Bruno Silva Torres, Luiz Eduardo Borges da Silva, Camila Paes Salomon and Carlos Henrique Valério de Moraes
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Bruno Silva Torres: Electrical Engineering Graduate Program, Itajuba Federal University, Itajuba 37500-903, Brazil
Luiz Eduardo Borges da Silva: Electrical Engineering Graduate Program, Itajuba Federal University, Itajuba 37500-903, Brazil
Camila Paes Salomon: Electrical Engineering Graduate Program, Itajuba Federal University, Itajuba 37500-903, Brazil
Carlos Henrique Valério de Moraes: Electrical Engineering Graduate Program, Itajuba Federal University, Itajuba 37500-903, Brazil

Energies, 2022, vol. 15, issue 7, 1-28

Abstract: Smart grids are a reality in distribution systems. They have assisted in the operation, control, and most of all, the protection of urban networks, significantly solving the contingencies of these networks. This paper treats the initial stage of implementing smart grid switching devices in distribution networks. In this stage, smart grid technologies need to operate with the traditional protection elements (such as fuses, reclosers, and sectionalizers). This fact can create trouble in the protection schemes because there are two distinctive philosophies. In some companies, especially those without substantial capital, these two protection philosophies can run together for many years. The most popular intelligent electronic devices (IEDs) available in the market are studied to verify their features and the possibility to incorporate techniques to allow the two philosophies to work together. After that, the proposed approach shows how the existing IEDs can interact with the traditional devices. Special functions can also be incorporated to inform the control center of an operational problem, increasing the observability of the network. With the proposed approach, the IEDs are transformed into intelligent agents. Practical examples using real distribution systems are presented and discussed, proving the efficacy of the proposed methodology.

Keywords: smart grids; power distribution; traditional urban protection; contingencies; IED; intelligent agents; rule-based system; multiagent systems (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
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